From: Geert Uytterhoeven Date: Fri, 12 Oct 2018 07:20:17 +0000 (+0200) Subject: thermal: da9062/61: Prevent hardware access during system suspend X-Git-Tag: v4.14.81~149 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0a76f5c5b1014e7d59f87cb054f332ff8b1deea9;p=platform%2Fkernel%2Flinux-exynos.git thermal: da9062/61: Prevent hardware access during system suspend [ Upstream commit 760eea43f8c6d48684f1f34b8a02fddc1456e849 ] The workqueue used for monitoring the hardware may run while the device is already suspended. Fix this by using the freezable system workqueue instead, cfr. commit 51e20d0e3a60cf46 ("thermal: Prevent polling from happening during system suspend"). Fixes: 608567aac3206ae8 ("thermal: da9062/61: Thermal junction temperature monitoring driver") Signed-off-by: Geert Uytterhoeven Acked-by: Steve Twiss Signed-off-by: Eduardo Valentin Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c index dd8dd94..01b0cb9 100644 --- a/drivers/thermal/da9062-thermal.c +++ b/drivers/thermal/da9062-thermal.c @@ -106,7 +106,7 @@ static void da9062_thermal_poll_on(struct work_struct *work) THERMAL_EVENT_UNSPECIFIED); delay = msecs_to_jiffies(thermal->zone->passive_delay); - schedule_delayed_work(&thermal->work, delay); + queue_delayed_work(system_freezable_wq, &thermal->work, delay); return; } @@ -125,7 +125,7 @@ static irqreturn_t da9062_thermal_irq_handler(int irq, void *data) struct da9062_thermal *thermal = data; disable_irq_nosync(thermal->irq); - schedule_delayed_work(&thermal->work, 0); + queue_delayed_work(system_freezable_wq, &thermal->work, 0); return IRQ_HANDLED; }